added os environ

app.py

@@ -27,7 +27,7 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 # ----- THIS IS WERE YOU CAN BUILD WHAT YOU WANT ------
 model = OpenAIServerModel(
                 model_id="gpt-4.1-mini",
-                api_key=userdata.get('OPENAI_API_KEY'),
+                api_key=os.environ.get('OPENAI_API_KEY'),
         )
 # PROMPTS
 system_prompt = """You are a general AI assistant. I will ask you a question.
@@ -150,7 +150,7 @@ def analyze_image(image_path: str, task: str) -> str:
     Returns:
         str: Result of the analysis as a string.
     """
-    client = OpenAI(api_key=userdata.get('OPENAI_API_KEY'))
+    client = OpenAI(api_key=os.environ.get('OPENAI_API_KEY'))
 
     with open(image_path, "rb") as f:
         encoded_image = base64.b64encode(f.read()).decode("utf-8")